When we invest, we're generally looking for stocks that outperform the market average. And the truth is, you can make significant gains if you buy good quality businesses at the right price. For example, long term Southern Copper Corporation (NYSE:SCCO) shareholders have enjoyed a 74% share price rise over the last half decade, well in excess of the market return of around 44% (not including dividends).

Although Southern Copper has shed US$3.8b from its market cap this week, let's take a look at its longer term fundamental trends and see if they've driven returns.

View our latest analysis for Southern Copper

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Over half a decade, Southern Copper managed to grow its earnings per share at 23% a year. This EPS growth is higher than the 12% average annual increase in the share price. So it seems the market isn't so enthusiastic about the stock these days.

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

earnings-per-share-growth

It's probably worth noting that the CEO is paid less than the median at similar sized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of Southern Copper, it has a TSR of 125% for the last 5 years. That exceeds its share price return that we previously mentioned. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

We're pleased to report that Southern Copper shareholders have received a total shareholder return of 67% over one year. Of course, that includes the dividend. That's better than the annualised return of 18% over half a decade, implying that the company is doing better recently. Given the share price momentum remains strong, it might be worth taking a closer look at the stock, lest you miss an opportunity. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. Take risks, for example – Southern Copper has 2 warning signs (and 1 which is a bit unpleasant) we think you should know about.

But note: Southern Copper may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on American exchanges.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.